2-9.In the development of ananticyclone,what changes occur inthe troposphere and lowerstratosphere?1.Warming occurs both in the 400-to 200-hPa stratum, and in thelower troposphere due tosubsidence2.Cooling occurs above the 400-to 200-hPa stratum, and warmingoccurs in the lower tropospheredue to convergence3.Warming occurs in the 400- to200-hPa stratum due tosubsidence,and cooling occursin the lower troposphere due toconvergence4.Cooling occurs above the200-hPa level due toconvergence in the 400- to200-hPa stratum, and warmingoccurs in the lower troposphere2-10.Assume you are forecasting asurface high.YOU find that the500-hPa height is NOT forecasted toincrease, although convergence isoccurring above 500 hPa.Whatshould you forecast for this high?1.It will split2.It will weaken3.It will intensify4.It will remain unchanged inintensity2-11.In regard to satellite imageryinterpretation of intensity changesof surface cyclones, which of thefollowing statements is valid?1.Filling is indicated whenPositive Vorticity Advection(PVA) becomes broader2.High clouds surrounding avortex indicate cold airadvection3.High and/or middle cloudssurrounding a vortex indicatethe cyclone has reachedmaturity4.Deepening is indicated when PVAbecomes narrower2-12.The forecasting of frontal2-13.2-14.2-15.displacement by the geostrophicwind method should be based onwhich of the following components?1.The geostrophic wind componentparallel to the front obtainedat the time of the forecast2.The geostrophic wind componentnormal to the front obtained atthe time of the forecast3.A forecast of the meancomponent of the geostrophicwind, parallel to the front,which is expected to prevailduring the forecast period4.A forecast of the meancomponent of the geostrophicwind, normal to the front,which is expected to prevailduring the forecast periodYou should expect a front to have arapid west-east movement withlittle southward penetration duringwhat index cycle?1.A low zonal index2.A high zonal index3.A changing zonal index4.A decreasing zonal indexWhich of the following movementswould NOT indicate intensificationof a surface front?1.The surface front approaches adeep upper level trough2.The mean isotherms become morenormal to the surface front3.The mean isotherms become moreparallel to the surface, andtend to pack4.Both air masses havestrengthened due to theunderlying surfaceWhen the mean isotherms associatedwith a frontal system become moreperpendicular to the surface front,what process should be anticipated?1.Frontogenesis2.Frontolysis3.Cyclogenesis4.Cyclolysis10